RE: modeling, validating and documenting an xml grammar
Bob Foster wrote: > From: "Mike Fitzgerald" <mike@w...> > Also, RELAX NG lacks the precise occurrence restraints of XML > Schema that is, no minOccurs/maxOccurs. RNG supports only the common RE > or DTD constraints ? * + as <optional>, <zeroOrMore>, and <oneOrMore>. > > Yes, but that's just shorthand; it doesn't add any additional capability. In some respects, it is shorthand, e.g.: ? is <optional> is minOccurs="0" maxOccurs="1" but you can't say a min of 9 occurrences with a max of 12 in RELAX NG; you can in XML Schema with minOccurs="9"/maxOccurs="12". However, M-N constraints are on the official docket for RELAX NG as a separate spec. Mike
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